Figure 2

(a) Seebeck coefficients of SWCNT films with different surfactants as a function of heat-treatment temperature. (b) Retention period of n-type Seebeck coefficients of the selected SWCNT films depending on the heat-treatment temperature.
(a) Seebeck coefficients of SWCNT films with different surfactants as a function of heat-treatment temperature. (b) Retention period of n-type Seebeck coefficients of the selected SWCNT films depending on the heat-treatment temperature.